With a motto of “Always Ready,” the United States Coast Guard (USCG) has 11 missions specified by law including drug and migrant interdiction; ports, waterways and coastal security; fishery patrols; search and rescue; and national defense. The USCG’s newest ships include 22 Fast Response Cutters (FRCs) which recently entered service, and 36 more are currently on order. ...

For remote locations, a reliable and repeatable field sampling method is needed for monitoring ecosystem processes for various scientific reasons (e.g. ground truthing, link vegetation indices to ecophysiological variables) (Claudio et al., in press; Fuentes et al., in press, Cheng et al., in press). To ensure that the data are collected continuously, and to collect the data during severe weather ...

The responsiveness of PIDs to virtually all VOCs has seen them become the accepted tool for initial site entry assessment, ensuring optimal detection of unknown and often toxic or hazardous chemicals found at hazardous waste sites and chemical emergencies. The speed and accuracy of modern PID equipment means that many worker and community safety concerns during initial and ongoing operations can ...

ABSTRACT The inhomogenous lead-in-soil matrix can present serious obstacles to accurate sample collection and handling. In typical lead-in-soil measurement, particle size related errors in sampling and sample handling often exceed all other sources of error. The magnitude of error can vary widely depending on the particulate nature of the lead contaminant and the effectiveness of control ...

Abstract The implementation of dual reticulation systems for returning recycled water to the home for nonpotable use is now common in new Australian housing developments. Managing the associated public health risk requires consideration of the potential for crossconnections between recycled and potable water pipes. While current protocols for detection exist, they are time consuming and ...

The Geotech G100, which measures CO2 from 0-20%, is used to demonstrate accurate and repeatable CO2 readings of the atmosphere inside incubators. In just a few seconds an embryologist is able to take a reading from various incubators, all of which will have a different means of sampling the air inside an incubator, without fully opening the inner door and adversely affecting the environment. It ...

ABSTRACT Field portable x-ray fluorescence (XRF) continues to gain acceptance as a complement to traditional laboratory testing of metal contaminated soil. The quality of data produced by field XRF varies with site conditions, soil composition, and sample preparation. Quality assurance protocols for the field method usually require that a number of field samples be split and sent to a ...

A new approach It is hard to think of another environment where an equipment failure could have a greater negative impact on employee safety and lost production than an offshore oil and gas production platform. Yet offshore platforms are among the world’s most difficult locations to operate and maintain equipment. In most cases, skilled people and supplies can only reach the ...

Introduction Defiant’s FROG 4000, a portable GCPID system, was used to identify and determine the concentration of chlorinated alkenes in several extraction wells located in Tacoma Washington. Split samples were taken at each well and sent to an offsite lab for analysis. This case study examines the field exercise and highlights the high degree of agreement between the offsite lab and ...

On-site analysis of total petroleum hydrocarbon (TPH) concentration levels in soil are easily handled using the InfraCal TOG/TPH Analyzers manufactured by Wilks Enterprise, Inc. The InfraCal TOG/TPH Analyzers are portable infrared (IR) analyzers that quickly determine TPH levels in less than 10-15 minutes, including the extraction. Concentrations as low as 10 ppm to well over 10,000 - ...

New regulations by the European Union require laboratory testing for polyaromatic hydrocarbons (PAHs) when recycling or disposing old tar or asphalt from road planings. Sitelab’s portable UVF-3100D and TD-500D analyzers have similar sensitivity to these types of compounds. The equipment is easy to operate and samples can be tested in the field in less than ...

As has been previously discussed (1), FTIR spectroscopy is emerging as a technique that can be effectively used for applications and/or in locations that heretofore would be considered too demanding. The development of portable FTIRs, and more recently handheld FTIRs, is significant because it enables this powerful analytical technique to solve problems for a whole range of new applications, both ...

Cognition Land and Water Ltd, a UK based remediation specialist, has hired a portable XRF metals analyser to improve the speed of remediation work at a project in London’s Kentish Town. The project had a major impact on local residents so timescales were extremely tight but Cognition’s Charlie Jarvis says “It would not have been possible to meet the deadline without the use of ...

The emission factors of benzo[a]pyrene for gasoline cars and for diesel cars were measured by directly collecting the exhaust gas using a portable sampling equipment and became 660 ng km–1 and 1700 ng km–1, respectively. The regression equations to easily evaluate the concentrations at the roadsides and at the crossroads were introduced as the functions of building height, road width, ...

For my research work, which concerns separation of liquid/liquid dispersions, I selected the Spectrex PC2200. It covers the whole range of droplet sizes which are of interest, i.e. from 0.5 to 100 microns. The procedure for analysis is very simple and results are obtained in less than a minute. This makes the Spectrex instrument very handy for use in the lab as well as for field measurements (A ...

New regulations by the European Union require laboratory testing for polyaromatic hydrocarbons (PAHs) when recycling or disposing old tar or asphalt from road planings. Sitelab’s portable UVF-3100D and TD-500D analyzers have similar sensitivity to these types of compounds. The equipment is easy ...

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